Thanks!
I then checked report file, and found i had misunderstood on iku.andrea marini wrote: Be carefull the iku stands for internal K units, and check the the alat used by Yambo is the same of the one used in the CPC paper. I already wrote somewhere else that alat in Yambo is a simple internal parameter used to rescale the k-pt vectors.
For my calculation, (0.40, 0.0, 0.0) iku is (0.80, 0.0, 0.0) $2\pi/a$ . I attached the input setting for abinit and yambo rpt file. Please give me more comments on this issue .
However, without increasing damping energy (0.1 eV i adopted here following the CPC paper), I cannot find any other effective away to improve the smoothness of high tranfer monmenta curve. Can you give me some advices? Thanks
Best wishes,
Hai-Ping